Cable-grip.



No. 802,231. PATENTED UGT. 17,1905. L NEFF.

CABLE GMP.

APPLICATION FILED Fm.27,19o5,

Ly/ WITSSES: l f y W TTOR/VEYS ASA J. NEFF, OF HOUSTON, TEXAS.

' 'CBLE Specification of Letters Patent.

Patented Oct. 17, 1905.

Application filed February 27, 1905. Serial No. 247,507.

.''o rl/ZZ 'wl/1,0111, it 77mg/ concern:

Be it known that I, Asn J. NEFF, a citizen oi' the United States, anda resident oi' Houston, in the county o't' Harris and State of Texas, have invented a new and Improved Gable- Grip, oi" which the 'following' lis a full, clear, and exact description.

This invention relates to grips to be used in connection with cableways.

The object oi: the invention is to produce a grip of simple construction which will operate to grasp the moving1 cable firmly and which will operate automatically to apply its graspingI force when a load upon the grip is applied.

Reference is to be had tothe accompanying drawings, forming a part of this specification, in which drawings like characters ol relierence indicate like parts in the several views, and in whichw Figure 1 is a perspective showing the device in practical operation, a portion of the controlling-lever being broken away. Fig. 2 is a side elevation of the grip, showing the same in open or released relation, certain parts being broken away. Fig. 3 is a substantially central vertical section taken through the grip with the parts in the relation shown in Fig. 2. Fig. i is a rear elevation of the body of the clamp of the grip, and Fig. 5 is a plan of the clamping-nut.

Referring more particularly to the parts, 1 represents the cable, which is preferablyendless and which is supposed to be moved in order to advance the load or loads drawn by the cable. Such cables are used largely in excavating works of all kinds and in various engineering operations. They are usually formed of twisted strands oi' wire or similar material.

The grip 2 comprises a clamp 3, said clamp having a body 4C, which consists of a substantially triangular plate massive in structure, as shown, and formed at its upper edge into a hook or jaw 5, adapted to receive the cable 1, as indicated most clearlyfin Fig. 3. The side edges of the body 4L preferably converge toward its lower portion, near which part the body is formed with a bore 6, which receives an eccentric-pin 7, said eccentric-pin having an enlarged eccentric head 8. Upon this eccentric head 8 a movable jaw 9 is attached, the same being provided with an opening 10, which receives nicely the head 8, as indicated in Fig. Q.

This eccentric-pin 7 is I neferably formed integrally with a lever 11, projecting laterally from the saine, as shown.

At a suitable point upon the lever 11 a clevis or shackle l2 is attached, the said shackle affording means for attaching a drag-cable 13, as shown, the said drag-cable being provided with a head 14, having an eye 15 receiving the clevis, as indicated.

The extremity of the eccentric-pin 7 is threaded, as shown, and projects into the recess 16, formed at the back oi' the body 4, in which recess a Spanner-nut 17 is seated, as shown. The lower extremity of the lever 11 is pref erably formed into a handle 18 for the purpose of moving the lever manually when desired.

The operation of the grip will be most clearly understood from an inspection oi' Fig. 3, and in this view the parts are shown in the relation such as to maintain the grip in a released condition. At this time the central axis of the head is disposed below the central axis of the pin 7, and this position ofthe parts would correspond to the relation in which they are shown in Fig. 2. It' the lever 11 is moved into the position indicated in Fig. 1, the axis of the head 8 will move into the position above the axis of the pin 7 and will operate to project the jaw 9 upward, in this way pressing its gripping'facc against the under side of the cable, as will be readily understood. The drag-cable 13, to which the load will be attached, operates to apply the lever in the manner suggested, and hence the load itself operates automatically to maintain the grasp of thc grip upon the cable. When it is desired to release the grip, manual force would be applied to the lever in the manner suggested above.

The grip may be applied or released at will anywhere along the cable and while the cable is in motion, provided the cable does not move over three hundred or four hundred feet per minute. s

The grip described is evidently very simple in construction and easily applied so as to do its work effectively. 1

Having thus described my invention, Iclaim as new and desire to secure by Letters Patentw 1. In a device oi' the class described, in combination, a clamp comprising a body and a movable jaw, a pin rotatably mounted in said body and having an eccentric head received in said movable jaw, a hand-lever carrying for attaching a drag-line tov said hand-lever IO 4 near said pin.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

ASA. J. NEFF. Witnesses:

A. N. GARDINER, V. J. LA BANNE. 

